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Tag: "mass" at biology news

UCI researchers discover key factor for survival of human embryonic stem cells

...ls alive, a finding that could potentially lead to mass production of hES cells for therapeutic use at lower cost. These findings appear in a paper in the early online version of the journal Nature Biotechnology. UCI stem cell researchers Peter Donovan and Leslie Lock, along with April Pyle of Johns...

Newly discovered protein kills anthrax bacteria by exploding their cell walls

...y to fight the spread of anthrax in the event of a mass release. ...

New influenza vaccine takes weeks to mass produce

...rs have developed a commercially viable method for mass producing effective vaccines against potential pandemic influenza strains in weeks instead of the months required for traditional egg-based vaccines. They report their results today at the 2006 ASM Biodefense Research The next flu pandemic could hap...

Study finds evolution doesn't always favor bigger animals

...gmann's Rule, which holds that animals increase in mass in colder environments. Biologists had long assumed that Bergmann's Rule--named after the 19 th century German biologist Christian Bergmann--reflected the adaptation of warm-blooded animals to become larger when they move in colder environments. Th...

Breast implants not associated with cancer risk, study reports

...cer incidence could be explained by the lower body mass index, higher number of births, and younger age at first childbirth observed in the group of women who had undergone breast implantation. The authors write, "After an average follow-up of 18 years, and a maximum follow-up of 37 years, we found that...

Salmonella caught red-handed

...te of Biochemistry then turned to highly-sensitive mass spectrometry to look at the protein mixture ?and discovered hundreds of different Salmonella metabolic path proteins. The scientists compared them with special protein databanks and identified possible points of attack for antibiotics. Bumann and hi...

Carbon cycle was already disrupted millions of years ago

...arbon occurs naturally in two stable forms; atomic mass 12 (99 percent) and atomic mass 13 (1 percent). Episodes in the Jurassic and Cretaceous periods were characterised by a relatively s...

Stanford/Packard scientist's data-mining technique strikes genetic gold

...eady there," said Butte. "We've reached a critical mass with this data. But unless we're careful, we're going to end up with a big mess." ...

AIDS drug from sunflowers

...to a fungus infection.' This knowledge would make mass production of DCQA a distinct possibility. Even now chemists can 'copy' the substance, albeit only with great difficulty. 'The tricky bit is transferring the caffeoyl groups to the quinic acid,' Ralf Theisen says. 'The plants probably only have one e...

Salk researchers make fast strides towards understanding how our body controls walking

...oser inspection, the spinal cord is just a jumbled mass of hundreds of thousands of neurons that all look the same," said Gosgnach. The Salk team used genetic approaches to identify a subset of neurons, named V1 neurons, as being part of the CPG, and gene targeting methods to selectively disable them in...

Legume compounds may help cancer treatment

...h success highlighted the importance of a critical mass of multidisciplinary biological scientists working together. "The CILR was formed in 2003 through the Australian Research Council (ARC) Centres of Excellence scheme to create the scale and focus required to build on existing research strengths throu...

Researchers use mass spectrometry to detect norovirus particles

Scientists have used mass spectrometry for decades to determine the chemical...Public Health recently demonstrated that proteomic mass spectrometry has the potential to be applied for this purpose. Using a two-step process, researchers...

Ancient ants arose 140-168 million years ago

Scientists have used mass spectrometry for decades to determine the chemical...Public Health recently demonstrated that proteomic mass spectrometry has the potential to be applied for this purpose. Using a two-step process, researchers...

Research tracks whales by listening to sounds

... we hope is to be able to identify a certain water mass and know that it will lead to chlorophyll growth and an abundance of plankton, and that the whales will soon appear." ...

MIT researchers build tiny batteries with viruses

...two to three times the electrical energy for their mass or volume, compared to previous materials," the team reported. The researchers' work was spurred by "growing evidence that 'nanostructured' materials can improve the electrochemical properties of lithium-ion batteries," compared to more conventional...

Study reveals mass migration of mormon crickets driven by hunger, fear

...evealed the motivating factors behind the seasonal mass migration of Mormon crickets in western North Amer...in and salt, and a fear of cannibalism, drives the mass migration of Mormon crickets in western North America. Throughout their seasonal migration, millio...

Obese people are more sensitive to pain, suggests study

...termined who was obese based on participants' body mass index (BMI) scores, which relates height to weight. Obese patients in this study had a BMI greater than 30 but less than 35. (Scores higher than 35 are considered morbidly obese.) The participants underwent two rounds of electrical stimulation ?once...

Alaska seal pup diet may hold key to decline of population

...tical predictor of whether the seal would add body mass and body fat, Polasek explained. Seals weighing less than 26 kilos (about 12 pounds) showed little progress in gaining weight and even lost blubber, regardless of which diet they were on. On the other hand, the study's largest seal, which weighed 33...

Biodiversity key to sustainable biofuel according to University of Minn. researcher's findings

...e plants, which are perennials, have far more root mass than crops such as corn, which must be replanted annually. ...

Better beetle sought for salt cedar control

...mple, where other studiesare being done. Each egg mass had 10 to 30 eggs. Another 60 adults were releasedbetween the three sites, Carney said. Each egg will go through threelarval stages, during which time they feed on the salt cedar, before theydrop into the ground and emerge a week later as a beetle. ...

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